Definition of scintilla in English:

noun

My understanding from his interview was that he did show a scintilla of self-doubt, which is very helpful for the commission, because after all, they need to make recommendations.

Apart from squandering the resources of a prodigiously gifted cast, the film's greatest shortcoming must be its inability to generate the merest scintilla of dramatic tension around its central narrative thread.

If he and his handlers had a scintilla of good judgment, they would give up the fight and embrace her as a worthy member of the Western canon - which she is, despite what they say.